Particle flux, and composition of sedimenting matter, in the Greenland Sea
Vertical flux of particulate material was recorded with moored sediment traps during 1988/1989 in the Greenland Sea at 72 degrees N, 10 degrees W. This region exhibits pronounced seasonal variability in ice cover. Annual fluxes at 500 m water depth were 22.79, 8.55, 2.39, 3.81 and 0.51 g m(-2) for t...
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1994
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ftoceanrep:oai:oceanrep.geomar.de:13660 2023-05-15T16:28:14+02:00 Particle flux, and composition of sedimenting matter, in the Greenland Sea Bauerfeind, E. Bodungen, B. V. Arndt, K. Koeve, Wolfgang 1994 text https://oceanrep.geomar.de/id/eprint/13660/ https://oceanrep.geomar.de/id/eprint/13660/1/science.pdf https://doi.org/10.1016/0924-7963(94)90005-1 en eng Elsevier https://oceanrep.geomar.de/id/eprint/13660/1/science.pdf Bauerfeind, E., Bodungen, B. V., Arndt, K. and Koeve, W. (1994) Particle flux, and composition of sedimenting matter, in the Greenland Sea. Journal of Marine Systems, 5 (6). pp. 411-423. DOI 10.1016/0924-7963(94)90005-1 <https://doi.org/10.1016/0924-7963%2894%2990005-1>. doi:10.1016/0924-7963(94)90005-1 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 1994 ftoceanrep https://doi.org/10.1016/0924-7963(94)90005-1 2023-04-07T15:02:48Z Vertical flux of particulate material was recorded with moored sediment traps during 1988/1989 in the Greenland Sea at 72 degrees N, 10 degrees W. This region exhibits pronounced seasonal variability in ice cover. Annual fluxes at 500 m water depth were 22.79, 8.55, 2.39, 3.81 and 0.51 g m(-2) for total flux (dry weight), carbonate, particulate biogenic silicate, particulate organic carbon and nitrogen, respectively. Fluxes increased in April, maximum rates of all compounds occurred in May-June, and consistently high total flux rates of around 100 mg m(-2)d(-1) prevailed during the summer. The increasing flux of biogenic particles measured in April is indicative of an early onset of algal growth in spring. Small pennate diatoms dominated in the trap collections during April, and were still numerous during the high flux period when Thalassiosira species were the most abundant diatoms. During May-June, up to 22% of the Thalassiosira cells collected were viable-looking cells. The faecal pellet flux increased after the May-June event. Therefore we conclude that the diatoms settled as phytodetritus, most likely in rapidly sinking aggregates. From seasonal nutrient profiles it is concluded that diatoms contribute 25% to new production during spring and 50% on an annual basis. More than 50% of newly produced silicate particles are dissolved above the 500 m horizon. High new production during spring does not lead to a pronounced sedimentation pulse of organic matter during spring but elavated vertical export is observed during the entire growth period Article in Journal/Newspaper Greenland Greenland Sea OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Greenland Journal of Marine Systems 5 6 411 423 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Vertical flux of particulate material was recorded with moored sediment traps during 1988/1989 in the Greenland Sea at 72 degrees N, 10 degrees W. This region exhibits pronounced seasonal variability in ice cover. Annual fluxes at 500 m water depth were 22.79, 8.55, 2.39, 3.81 and 0.51 g m(-2) for total flux (dry weight), carbonate, particulate biogenic silicate, particulate organic carbon and nitrogen, respectively. Fluxes increased in April, maximum rates of all compounds occurred in May-June, and consistently high total flux rates of around 100 mg m(-2)d(-1) prevailed during the summer. The increasing flux of biogenic particles measured in April is indicative of an early onset of algal growth in spring. Small pennate diatoms dominated in the trap collections during April, and were still numerous during the high flux period when Thalassiosira species were the most abundant diatoms. During May-June, up to 22% of the Thalassiosira cells collected were viable-looking cells. The faecal pellet flux increased after the May-June event. Therefore we conclude that the diatoms settled as phytodetritus, most likely in rapidly sinking aggregates. From seasonal nutrient profiles it is concluded that diatoms contribute 25% to new production during spring and 50% on an annual basis. More than 50% of newly produced silicate particles are dissolved above the 500 m horizon. High new production during spring does not lead to a pronounced sedimentation pulse of organic matter during spring but elavated vertical export is observed during the entire growth period |
format |
Article in Journal/Newspaper |
author |
Bauerfeind, E. Bodungen, B. V. Arndt, K. Koeve, Wolfgang |
spellingShingle |
Bauerfeind, E. Bodungen, B. V. Arndt, K. Koeve, Wolfgang Particle flux, and composition of sedimenting matter, in the Greenland Sea |
author_facet |
Bauerfeind, E. Bodungen, B. V. Arndt, K. Koeve, Wolfgang |
author_sort |
Bauerfeind, E. |
title |
Particle flux, and composition of sedimenting matter, in the Greenland Sea |
title_short |
Particle flux, and composition of sedimenting matter, in the Greenland Sea |
title_full |
Particle flux, and composition of sedimenting matter, in the Greenland Sea |
title_fullStr |
Particle flux, and composition of sedimenting matter, in the Greenland Sea |
title_full_unstemmed |
Particle flux, and composition of sedimenting matter, in the Greenland Sea |
title_sort |
particle flux, and composition of sedimenting matter, in the greenland sea |
publisher |
Elsevier |
publishDate |
1994 |
url |
https://oceanrep.geomar.de/id/eprint/13660/ https://oceanrep.geomar.de/id/eprint/13660/1/science.pdf https://doi.org/10.1016/0924-7963(94)90005-1 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland Sea |
genre_facet |
Greenland Greenland Sea |
op_relation |
https://oceanrep.geomar.de/id/eprint/13660/1/science.pdf Bauerfeind, E., Bodungen, B. V., Arndt, K. and Koeve, W. (1994) Particle flux, and composition of sedimenting matter, in the Greenland Sea. Journal of Marine Systems, 5 (6). pp. 411-423. DOI 10.1016/0924-7963(94)90005-1 <https://doi.org/10.1016/0924-7963%2894%2990005-1>. doi:10.1016/0924-7963(94)90005-1 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/0924-7963(94)90005-1 |
container_title |
Journal of Marine Systems |
container_volume |
5 |
container_issue |
6 |
container_start_page |
411 |
op_container_end_page |
423 |
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1766017866758356992 |